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NEET 2014 Chemistry question

ChemistryRedox ReactionsNEET 2014

In acidic medium, changes to which has two () bonds. Oxidation state of Cr in is

Answer: (3)

Solution

is a peroxo compound, : it has one oxo () group and two peroxide () groups, as the question states (two bonds). Oxidation number of Cr: $x + (-2)× 1 + (-2)× 2

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Question ID VK-091544